The Whisper Spring kit is a direct replacement for the heavy stock lever and lifter springs found in the toggle link rifles
No need to hand grind stock springs No need to leave mounting screws loose Eliminates gouged lever and lifter cam surfaces
The Whisper Springs are wire formed springs and may be adjusted by bending to give more or less pressure on the components. The naturally rounded form of the wire will not dig into the cam surfaces of the lever or lifter.
These will only fit Uberti made 1860 Henry, 1866, and 1873 rifles